WO2018074603A1 - Heat shielding structure and method for adding heat shielding structure - Google Patents

Abstract

Provided are a heat shielding structure and a method for adding a heat shielding structure, whereby non-heat-shielded portions can be eliminated and heat shielding performance can easily be increased. The present invention is provided with: a plurality of frame members (22) fixed to inner wall surfaces (14a)-(14d) of wall bodies (12a)-(12d) for forming an internal space (18); and a sheet-shaped heat shielding member (30) fixed to the frame members (22) so as to cover the inner wall surfaces (14a)-(14d) with no gap therebetween, and so that air layers (16a)-(16d) are formed between the inner wall surfaces (14a)-(14d) and the heat shielding member (30). Among the pair of principal surfaces of a substrate layer in the heat shielding member (30), an infrared-reflective layer is formed on the principal surface thereof that faces the inner wall surfaces (14a)-(14d).

Description

Heat shield structure and method of adding a heat shield structure

The present invention relates to a heat shield structure and a method for adding a heat shield structure, and more particularly, to a heat shield structure and a method for adding a heat shield structure to a facility having an internal space surrounded by a wall.

Refrigerated containers and prefabricated freezers are facilities that have an internal space surrounded by walls. In a refrigerator car or the like, equipment having an internal space surrounded by a wall is mounted on a cargo bed.

A facility having an inner space surrounded by a wall can improve heat shielding performance and reduce energy consumption by blocking or suppressing the transfer of thermal energy between the external environment and the inner space.

For example, as shown in FIG. 8, it has been proposed to attach a heat shielding sheet 1 to the outer surface of a facility having an internal space surrounded by walls (the roof 3 of the cargo compartment of the truck 2) (for example, Patent Document 1). reference).

Japanese Patent Laid-Open No. 2007-8496

¡The heat shielding performance can be improved by eliminating the part where the heat shielding sheet is not attached. However, the outer surface of the facility is generally a complex shape. For this reason, it is not easy to apply a heat shielding sheet to all the outer surfaces of the equipment without any gaps and to eliminate the portions that are not shielded from heat to improve the heat shielding performance.

In view of such circumstances, the present invention intends to provide a heat shield structure that can easily improve the heat shield performance by eliminating a portion that is not shielded from heat, and a method for adding the heat shield structure.

The present invention provides a heat shield structure configured as follows in order to solve the above-described problems.

熱 The heat shield structure is added to equipment that has an internal space surrounded by walls. The heat shield structure includes (a) a plurality of crosspiece members fixed to the inner wall surface of the wall body, and (b) covers the inner wall surface without a gap and forms an air layer between the inner wall surface. And a sheet-like heat shield member fixed to the crosspiece member. The heat shielding member includes (i) a base material layer having a pair of main surfaces, and (ii) a first infrared reflecting layer formed on one of the main surfaces facing the inner wall surface.

In the above configuration, the thermal energy of the wall body moves to the internal space of the heat shield structure surrounded by the heat shield member in three modes of radiation, convection, and conduction. The heat shield structure can suppress the movement of heat energy in three modes of radiation, convection, and conduction, and can improve the heat shield performance. The movement of thermal energy due to radiation is suppressed by the first infrared reflecting layer of the heat shield member reflecting most of the radiation from the wall. The movement of thermal energy due to convection and conduction can be suppressed by the air layer. It is easy to cover the inner wall surface with a heat shield member without gaps in the internal space of the facility.

Therefore, it is easy to improve the heat shielding performance by eliminating the portion that is not heat shielded.

Preferably, the heat shield member is fixed to the crosspiece member by adhesion.

When the heat shield member is fixed to the crosspiece member using a fixing member such as a screw, heat is transmitted to the fixing member, and the heat shield performance is lowered. When the heat shield member is bonded to the crosspiece member, such a decrease in the heat shield performance does not occur.

Preferably, the crosspiece member is made of resin.

木材 If wood is used for the heat shield structure as in the case of ordinary bars, there is a risk of warping, cracking, or mold growth due to condensation. Resin is less susceptible to dew condensation than wood, and it is easy to prevent mold. Moreover, the material excellent in adhesiveness with a heat-shielding member can be selected.

Preferably, the heat shield member further includes (iii) a second infrared reflective layer formed on the other main surface of the base material layer.

In the heat shield member, the heat shielding performance is improved by forming the infrared reflective layer on both main surfaces of the base material layer, compared to the case where the infrared reflective layer is formed only on one main surface of the base material. Moreover, it can construct without distinguishing the front and back of a heat-shielding member. Furthermore, the heat shielding performance when heat energy moves from the internal space of the heat shielding structure to the wall body is improved.

Also, the present invention provides a method for adding a heat shield structure configured as follows in order to solve the above-mentioned problems.

The method of adding a heat shield structure is a method of adding a heat shield structure to equipment having an internal space surrounded by walls. A method for adding a heat shield structure includes (i) a first step of preparing a plurality of crosspiece members and a sheet-like heat shield member, and (ii) using the crosspiece member and the heat shield member, And a second step of producing the heat shield structure in the internal space. In the second step, the crosspiece member is fixed to the inner wall surface of the wall body, the heat shield member covers the inner wall surface without a gap, and forms an air layer between the inner wall surface and the heat shield member. Thus, it is fixed to the crosspiece member. The heat shield member includes (a) a base material layer having a pair of main surfaces, and (b) a first infrared reflecting layer formed on one of the main surfaces facing the inner wall surface.

When a heat shielding structure is added to the equipment by the above method, it is easy to improve the heat shielding performance by eliminating the part that is not heat shielded.

Preferably, the heat shield member is fixed to the crosspiece member by adhesion.

When the heat shield member is fixed to the crosspiece member using a fixing member such as a screw, heat is transmitted to the fixing member, and the heat shield performance is lowered. When the heat shield member is bonded to the crosspiece member, such a decrease in the heat shield performance does not occur.

Preferably, the crosspiece member is made of resin.

木材 If wood is used for the heat shield structure as in the case of ordinary bars, there is a risk of warping, cracking, or mold growth due to condensation. Resin is less susceptible to dew condensation than wood, and it is easy to prevent mold. Moreover, the material excellent in adhesiveness with a heat-shielding member can be selected.

Preferably, the heat shield member further includes (c) a second infrared reflective layer formed on the other main surface of the base material layer.

In the heat shield member, the heat shielding performance is improved by forming the infrared reflective layer on both main surfaces of the base material layer, compared to the case where the infrared reflective layer is formed only on one main surface of the base material. Moreover, it can construct without distinguishing the front and back of a heat-shielding member. Furthermore, the heat shielding performance when heat energy moves from the internal space of the heat shielding structure to the wall body is improved.

Preferably, in the first step, a composite heat shield member in which the crosspiece member is fixed to the heat shield member is prepared.

In this case, since the work of fixing the heat shield member to the crosspiece member in the internal space is not required, the work can be efficiently performed in the internal space.

Preferably, (iii) a third step of measuring a temperature distribution of the inner wall surface is further provided before the second step.

In this case, the heat shielding performance can be further improved by examining the measurement results and adding appropriate measures as necessary.

Preferably, (iv) after the second step, the method further includes a fourth step of measuring a temperature distribution on the surface of the heat shield member opposite to the inner wall surface.

In this case, the heat shielding performance of the heat shielding structure can be guaranteed based on the measurement result. In addition, it is possible to find a construction failure from the measurement result and perform a repair work.

According to the present invention, it is easy to improve the heat shielding performance by eliminating the portion that is not heat shielded.

FIG. 1 is a cross-sectional view of a prefabricated facility to which a heat shield structure is added. Example 1 FIG. 2 is a cross section of the heat shield member. Example 1 FIG. 3 is an enlarged cross-sectional view of a main part of the heat shield structure. Example 1 FIG. 4 is an enlarged cross-sectional view of a main part of the heat shield structure. (Modification 1) FIG. 5A is a plan view of the composite heat shield member, FIG. 5B is a side view of the composite heat shield member, and FIG. 5C is an enlarged view of the main part of the composite heat shield member (Modification 2). . FIG. 6 is an explanatory diagram of a thermostatic facility in which a heat shield structure is added to the container. (Example 2) FIG. 7 is an explanatory diagram of the thermostatic equipment. (Experimental example 1) FIG. 8 is an explanatory diagram of affixing the heat shield sheet. (Conventional example)

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Example 1> The heat shield structure 20 of Example 1 will be described with reference to FIGS.

FIG. 1 is a cross-sectional view of a prefabricated facility 10 to which a heat shield structure 20 is added. As shown in FIG. 1, a prefabricated facility 10 such as a prefabricated refrigerator or a prefabricated freezer is a facility in which a plurality of plate-like wall bodies 12a to 12d are assembled in a box shape, and is hermetically sealed with wall bodies 12a to 12d. It has a possible internal space 18.

The heat shield structure 20 is added to the internal space 18 of the prefabricated facility 10. That is, the heat shield structure 20 includes: (a) a plurality of crosspiece members 22 fixed to the inner wall surfaces 14a to 14d of the wall bodies 12a to 12d; and (b) the inner wall surfaces 14a to 14d without gaps. 14a to 14d are formed in the air layers 16a to 16d, and the sheet-like heat shield member fixed to the crosspiece member 22 so that the convection velocity in the air layers 16a to 16d is equal to or lower than a predetermined value. 30. The inner wall surfaces 14a to 14d of the wall bodies 12a to 12d are inner peripheral surfaces that form the internal space 18 of the prefabricated facility 10. Interiors such as a floor 27, a wall, and a ceiling may be provided in the internal space 28 surrounded by the heat shield member 30.

The thickness of the air layers 16a to 16d, that is, the size of the gap between the inner wall surfaces 14a to 14d and the heat shield member 30, is determined by the heat of the wall bodies 12a to 12d being the heat shield member 30. The length directly transmitted to the infrared reflection layer) is preferred. For example, when the length that the heat of the walls 12a to 12d is directly transmitted to the heat shield member 30 (specifically, a first infrared reflecting layer described later) is less than 15 mm, the thickness of the air layers 16a to 16d is 15 mm. The above is preferable.

As the convection velocity in the air layers 16a to 16d is smaller, the movement of heat energy due to convection is suppressed, and the heat shielding performance is improved. Therefore, the convection velocity in the air layers 16a to 16d is preferably equal to or lower than the maximum velocity of the convection velocity, and more preferably 0.

The convection velocity in the air layers 16a to 16d varies depending on the temperature distribution of the inner wall surfaces 14a to 14d, the thickness of the air layers 16a to 16d, and the like.

For example, under certain conditions, when the thickness of the air layers 16a to 16d is up to 24 mm, the air in the air layers 16a to 16d is stationary and the convection velocity in the air layers 16a to 16d is zero. When the thickness of the air layers 16a to 16d exceeds 24 mm, the convection speed of the air in the air layers 16a to 16d increases as the thickness of the air layers 16a to 16d increases until the thickness of the air layers 16a to 16d reaches 30 mm. Become. When the thickness of the air layers 16a to 16d is 30 mm or more, the convection speed of the air in the air layers 16a to 16d becomes the maximum speed. In this case, the thickness of the air layers 16a to 16d is preferably 30 mm or less, and more preferably 24 mm or less.

In order to improve the heat shielding performance, the heat energy transmitted directly from the walls 12a to 12d to the heat shielding member 30 and the convection in the air layers 16a to 16d are transmitted from the walls 12a to 12d to the heat shielding member 30. It is effective to suppress the total amount of heat energy. If the total amount of heat energy transferred to the heat shield member 30 can be suppressed, priority is given to suppression of heat transfer by convection, and the thickness of the air layers 16a to 16d is such that the heat of the wall bodies 12a to 12d is transferred to the heat shield member 30. The length may be directly transmitted (for example, less than 15 mm).

The dimensions and arrangement of the crosspiece 22 can be determined in consideration of the heat shielding performance. For example, the thickness of the crosspiece member 22 is determined so that the thickness of the air layers 16a to 16d becomes a predetermined value. In addition, the cross member 22 having an appropriate size is fixed to the inner wall surfaces 14a to 14d at appropriate positions at appropriate positions so that the convection velocity of the air in the air layers 16a to 16d is not more than a predetermined value.

FIG. 2 is a cross section of the heat shield member 30. As shown in FIG. 2, the heat shield member 30 includes (a) a base material layer 32 having a pair of main surfaces 32 a and 32 b, and (b) a wall of the pair of main surfaces 32 a and 32 b of the base material layer 32. A first infrared reflecting layer 34 formed on one main surface 32a facing the inner wall surfaces 14a to 14d (see FIG. 1) of the bodies 12a to 12d, and (c) the other main surface 32b of the base material layer 32. And the formed second infrared reflective layer 36.

In the heat shield member 30, most of the components transmitted without being reflected by the first infrared reflection layer 34 out of the radiation from the wall bodies 12 a to 12 d are reflected by the second infrared reflection layer 36. Therefore, the heat shield member 30 improves the heat shield performance as compared with the case where only the first infrared reflection layer 34 is included (that is, the case where the second infrared reflection layer 36 is not included). Moreover, the heat shield member 30 can be used without distinguishing the front and back. Further, the heat shielding performance is improved when heat energy is transferred from the internal space 28 of the heat shielding structure 20 to the walls 12a to 12d. Therefore, it is preferable that the heat shield member 30 includes the first and second infrared reflecting layers 34 and 36.

However, the heat shield member 30 including only the first infrared reflective layer 34 and not including the second infrared reflective layer 36 may be used for the heat shield structure 20.

The base material layer 32 of the heat shielding member 30 may include only one layer or a plurality of layers, and may be configured by using a foamed heat insulating material containing bubbles inside.

The infrared reflecting layers 34 and 36 can be formed on the main surfaces 32a and 32b of the base material layer 32 by a method such as attaching a metal foil, vapor deposition of a metal material, or applying a thermal barrier paint. Since the infrared reflection layers 34 and 36 have a higher thermal barrier performance as the infrared reflectance is higher, for example, the infrared reflectance of the infrared reflection layers 34 and 36 is preferably 80% or more, more preferably 90% or more. 95% or more is even more preferable. For example, when an aluminum foil is used, the infrared reflecting layers 34 and 36 having an infrared reflectance of 95% or more can be formed at a low cost.

FIG. 3 is an enlarged cross-sectional view of the main part of the heat shield structure 20. As shown in FIG. 3, the crosspiece member 22 and the inner wall surfaces 14a to 14d are bonded to each other through the first adhesive layer 24. Further, the crosspiece member 22 and the heat shield member 30 are bonded to each other through the second adhesive layer 26.

FIG. 4 is an enlarged cross-sectional view of a main part of the heat shield structure 20a of the first modification. As shown in FIG. 4, the crosspiece member 22 is fixed to a metal fitting 40 fixed to the inner wall surfaces 14a to 14d by welding or the like using screws 42. The heat shield member 30 is fixed to the crosspiece member 22 using a fixing member 39 such as a screw or a nail. In this case, heat is transmitted from the fixing member 39, and the heat shielding performance is reduced. In order to prevent this, it is preferable to attach a tape 38 having heat insulation performance to the heat insulation member 30 so that the fixing member 39 is hidden.

As shown in FIG. 3, when the crosspiece member 22 and the heat shield member 30 are bonded to each other, the heat shield performance due to the fixing member 39 as shown in FIG. 4 does not occur.

As shown in FIG. 3, when the inner wall surfaces 14a to 14d and the crosspiece member 22 are bonded to each other, the metal fitting 40 and the screw 42 as shown in FIG. 4 are not necessary. Therefore, it is easy to improve the heat shielding performance by reducing the thickness of the crosspiece member 22 and reducing the thickness of the air layers 16a to 16d.

The crosspiece member 22 is preferably, for example, a member obtained by molding urethane into a columnar shape. The crosspiece member 22 may be made of wood in the same manner as a general crosspiece. However, when wood is used, there is a risk of warping or cracking or mold growth due to the influence of condensation or the like. Resin is less susceptible to dew condensation than wood, and it is easy to prevent mold. In addition, a material having excellent adhesion to the heat shield member 30 can be selected. Therefore, the crosspiece member 22 is preferably made of resin.

Next, a method for adding a heat shield structure will be described.

First, as a first step, a plurality of crosspiece members 22 and a sheet-like heat shield member 30 are prepared. Next, as a second step, the heat shield structure 20 is produced in the internal space 18 using the crosspiece member 22 and the heat shield member 30 prepared in the first step.

In the first step, instead of preparing the crosspiece member 22 and the heat shield member 30 separately, a composite heat shield member 50 in which the crosspiece member 22 is fixed to the heat shield member 30 may be prepared.

FIG. 5A is a plan view of the composite heat shield member 50. FIG. 5B is a side view of the composite heat shield member 50. As shown in FIGS. 5A and 5B, in the composite heat shield member 50, a columnar bar member 22 having a rectangular cross section is fixed to a belt-like heat shield member 30. The crosspiece member 22 is arranged so that a predetermined interval is provided in the longitudinal direction of the heat shield member 30 and the longitudinal direction of the crosspiece member 22 is orthogonal to the longitudinal direction of the heat shield member 30. The composite heat shield member 50 can be easily stored and transported in a state of being rolled.

FIG. 5C is an enlarged view of a main part of the composite heat shield member 50. As shown in FIG. 5C, the crosspiece member 22 is bonded to the heat shield member 30 using an adhesive or a double-sided tape, and a second adhesive layer 26 is formed between the heat shield member 30 and the crosspiece member 22. Has been. In the crosspiece member 22, a first adhesive layer 24 covered with a release material 25 is formed on the surface opposite to the heat shield member 30. By peeling off the release material 25, the crosspiece member 22 can be easily bonded to the inner wall surfaces 14a to 14d. The first adhesive layer 24 may be formed of one type of adhesive or a plurality of types of adhesive having different characteristics may be distributed.

In the composite heat shield member 50, the crosspiece member 22 may be fixed to the heat shield member 30 by a method other than adhesion.

The composite heat shield member 50 without the first adhesive layer 24 and the release material 25 may be used. In this case, the crosspiece member 22 of the composite heat shield member 50 is fixed to the inner wall surfaces 14a to 14d by bonding or other appropriate methods.

When the composite heat shield member 50 is used, the work of fixing the heat shield member 30 to the crosspiece member 22 in the internal space 18 becomes unnecessary, and therefore the work can be efficiently performed in the internal space 18.

Prior to the second step of manufacturing the heat shield structure 20, the temperature distribution of the inner wall surfaces 14a to 14d may be measured as a third step. In this case, the heat shielding performance can be further improved by examining the measurement results and adding appropriate measures as necessary. For example, heat shield and heat insulation measures are added to the heat source side of the high temperature portion of the inner wall surface. Alternatively, a measure for releasing the heat of the hot part to the other part is added. Or according to temperature distribution, the thickness and arrangement | positioning of the crosspiece member 22 are selected suitably, and it is made for the convection speed of the air in an air layer to become below a predetermined value.

After the second step of manufacturing the heat shield structure 20, as a fourth step, a surface opposite to the inner wall surfaces 14a to 14d of the heat shield member 30 (for example, the second infrared reflecting layer 36 shown in FIG. 2). ) Temperature distribution. In this case, the heat shielding performance of the heat shielding structure 20 can be guaranteed based on the measurement result. In addition, it is possible to find a construction failure from the measurement result and perform a repair work.

The temperature distribution is measured using, for example, infrared thermography technology. The temperature distribution diagram is pasted on the three-dimensional model of the internal space 18 of the prefabricated equipment 10 surrounded by the walls 12a to 12d and the three-dimensional model of the internal space 28 of the heat shield structure 20 surrounded by the heat shield member 30. If the three-dimensional display is used, the overall temperature distribution becomes easy to understand.

When the heat shield structure 20 is added to the prefabricated equipment 10, the thermal energy of the walls 12a to 12d is transferred to the internal space 28 of the heat shield structure 20 surrounded by the heat shield member 30 in three modes of radiation, convection, and conduction. Moving. The heat shield structure 20 can comprehensively suppress the movement of heat energy in the three modes of radiation, convection, and conduction, and enhance the heat shield performance.

That is, the movement of thermal energy due to radiation is suppressed by the first infrared reflecting layer 34 of the heat shield member 30 reflecting most of the radiation from the wall bodies 12a to 12d. The movement of thermal energy due to convection is suppressed when the convection velocity in the air layers 16a to 16d becomes a predetermined value or less. The transfer of thermal energy due to conduction is suppressed by the thickness of the air layers 16a to 16d being equal to or longer than the length by which the heat of the wall bodies 12a to 12d is directly transmitted to the first infrared reflecting layer 34.

Furthermore, it is easy to cover the inner wall surfaces 14a to 14d with the heat shielding member 30 in the inner space 18 of the prefabricated equipment 10 without any gaps.

Therefore, it is easy to improve the heat shielding performance by eliminating the portion that is not heat shielded.

<Example 2> The thermostat 80 of Example 2 in which a heat shield structure is added to the container 60 will be described with reference to FIG. Below, it demonstrates centering on difference with Example 1. FIG.

FIG. 6 is an explanatory diagram of a constant temperature facility 80 in which a heat shielding structure is added to the container 60. As shown in FIG. 6, the same heat shielding structure (not shown) as that of the first embodiment is added to the inner wall surface of the container 60 having the inner space surrounded by the wall body in a box shape. Yes. An indoor unit 62 of an air conditioner is installed in the internal space of the heat shield structure surrounded by the heat shield member. A solar panel 70 is installed on the top of the container 60.

An outdoor unit 64 of an air conditioner, a power controller 72, and a storage battery 74 are incorporated in the end of the container 60 or installed adjacent to the container 60.

The electric power generated by the solar panel 70 is stored in the storage battery 74 or supplied to the outdoor unit 64 via the power controller 72. When the amount of power generated by the solar panel 70 is insufficient, the power controller 72 supplies power from the storage battery 74 to the outdoor unit 64.

The constant temperature facility 80 can keep the temperature in the internal space of the heat shield structure constant even if the external temperature rises from the experimental results described below.

<Experimental Example 1> As Experimental Example 1, a thermostatic equipment 82 shown in FIG. 7 was prepared. As shown in FIG. 7, a heat shield structure 20 similar to that of the first embodiment is added to the inside of the container 60, and an indoor unit 62 of an air conditioner is installed in the internal space of the heat shield structure 20 surrounded by the heat shield member. The outdoor unit 64 was installed outside.

On both sides of the base material layer (flat surface of the bubble sheet) in which two bubble sheets are bonded to the heat shield member of the heat shield structure 20 so that the uneven surfaces formed by protruding portions containing bubbles are engaged with each other. In addition, an infrared reflecting layer having an aluminum reflectance of 97% attached thereto was used.

As Comparative Example 1, the heat shield structure 20 was not added to the container 60, an air conditioner indoor unit 62 was installed in the container 60, and an outdoor unit 64 was installed outside.

The containers 60 of both Experimental Example 1 and Comparative Example 1 were installed side by side so that the surrounding environment was in the same state. In the summer, the air conditioner was operated all day under the condition of the cooling set temperature of 18 ° C., and the temperature of the internal space of the heat shield structure of Experimental Example 1, the temperature in the container of Comparative Example 1, the power consumption of the air conditioner, and the like were measured.

From the experimental results, by adding a heat shield member to the container, even if the external temperature rises, the temperature of the internal space of the heat shield structure can be kept constant, reducing the power consumption of the air conditioner and improving the energy efficiency. It turns out that it improves.

Specifically, in Comparative Example 1 in which no heat shield structure was added, when the outside air temperature increased, the inside of the container could not be maintained at the set temperature, and the temperature inside the container exceeded the set temperature. For example, when the outside air temperature is 34 ° C., the temperature in the container has increased to 27 ° C.

On the other hand, in Experimental Example 1 in which the heat shield structure was added, the temperature of the internal space of the heat shield structure could be kept at the set temperature even when the outside air temperature increased. For example, when the outside air temperature was 34 ° C., the temperature of the internal space of the heat shield structure could be kept at 18 ° C.

The power consumption of Experimental Example 1 was reduced by 70% compared to Comparative Example 1.

<Experimental example 2> As experimental example 2, a refrigerator was used instead of the air conditioner of experimental example 1, and the power consumption was measured at a temperature setting of -5 ° C. As Comparative Example 2, the power consumption of the refrigerated container was measured under the same conditions.

The power consumption of Experimental Example 2 was reduced to about 1/10 compared with the refrigerated container of Comparative Example 2.

<Application Examples> The present invention can be applied to various uses.

The heat shield structure of the present invention is added to the luggage compartment or the transport container of the transport vehicle, and the water tank or bag is stored in the internal space of the heat shield structure. Fresh fish and the like are stored in the aquarium and bag together with liquid snow and sea ice. By combining liquid snow or seawater ice with the heat shield structure of the present invention, a low temperature state can be maintained for a long time, and long-distance low-temperature transport is possible without a refrigeration apparatus.

If a heat shield structure of the present invention is added to a container, windows and doors are provided, and it is used as a disaster victim's house, rapid reconstruction can be realized. It may be prepared in advance as an emergency house. By using interior materials containing functional materials such as applying plaster containing photocatalyst to the inner surface of the internal space of the heat-shielding structure, cleaning indoor air by decomposing harmful substances, etc., maintaining humidity, etc. The effect is obtained.

The heat shield structure of the present invention may be added to a container and used as it is for a disaster prevention storage. By providing equipment that keeps the temperature and humidity of the internal space of the heat shield structure constant, it is possible to store with little energy while maintaining the quality of rice and vegetables, and store aged meat.

<Summary> As described above, it is easy to improve the heat shielding performance by eliminating the portion that is not heat shielded. Moreover, the effect of reducing CO ₂ emissions can be obtained.

It should be noted that the present invention is not limited to the above embodiment, and can be implemented with various modifications.

For example, the present invention includes: (a) a container having an internal space surrounded by walls, such as a cargo container, a refrigerated container, a refrigerated container, a heat insulating container, a container house, etc., (b) a prefabricated refrigerator, a prefabricated freezer, a prefabricated heat insulating material. Prefabricated equipment with internal space surrounded by walls, such as storage, prefabricated constant temperature and high humidity storage, prefabricated storage, etc., (c) Internal space surrounded by walls provided in refrigerated vehicles, cold storage vehicles, refrigerators, etc. It can be applied to cargo bed equipment having Further, the heat shield structure of the present invention can be added later to existing / existing containers, prefabricated facilities, cargo bed equipment, etc., or the container equipment, prefabricated equipment, cargo bed equipment to which the heat shield structure of the present invention has been added in advance. Can also be manufactured and sold as products.

DESCRIPTION OF SYMBOLS 10 Prefabricated equipment 12a-12d Wall body 14a-14d Inner wall surface 16a-16d Air layer 18 Internal space 20, 20a Thermal insulation structure 18 Internal space 20 Thermal insulation structure 22 Crosspiece member 28 Internal space 30 Thermal insulation member 32 Base material layer 32a One side Main surface 32b The other main surface 34 The first infrared reflecting layer 36 The second infrared reflecting layer 50 The composite heat shielding member

Claims (11)

A heat shield structure added to equipment having an internal space surrounded by a wall,
A plurality of crosspiece members fixed to the inner wall surface of the wall,
A sheet-like heat shield member fixed to the crosspiece member so as to cover the inner wall surface without a gap and to form an air layer between the inner wall surface;
With
The heat shield member is
A base material layer having a pair of main surfaces;
A first infrared reflecting layer formed on one of the main surfaces facing the inner wall surface;
A heat shielding structure characterized by comprising: The heat shield structure according to claim 1, wherein the heat shield member is fixed to the crosspiece member by adhesion. The heat shield structure according to claim 1 or 2, wherein the crosspiece member is made of resin. 4. The shield according to claim 1, wherein the heat shield member further includes a second infrared reflective layer formed on the other main surface of the base material layer. 5. Thermal structure. A method of adding a heat shield structure to equipment having an internal space surrounded by a wall,
A first step of preparing a plurality of crosspiece members and a sheet-like heat shield member;
A second step of producing the heat shield structure in the internal space using the crosspiece member and the heat shield member;
With
In the second step, the crosspiece member is fixed to the inner wall surface of the wall body, the heat shield member covers the inner wall surface without a gap, and forms an air layer between the inner wall surface and the heat shield member. Fixed to the crosspiece member,
The heat shield member is
A base material layer having a pair of main surfaces;
A first infrared reflecting layer formed on one of the main surfaces facing the inner wall surface;
A method for adding a thermal barrier structure, comprising: The method for adding a heat shield structure according to claim 5, wherein the heat shield member is fixed to the crosspiece member by adhesion. The method of adding a heat shield structure according to claim 5 or 6, wherein the crosspiece member is made of resin. The said heat shielding member further contains the 2nd infrared reflective layer formed in the said other main surface of the said base material layer, The shielding as described in any one of Claim 5 thru | or 7 characterized by the above-mentioned. How to add thermal structure. The thermal insulation structure according to any one of claims 5 to 8, wherein, in the first step, a composite thermal insulation member in which the crosspiece member is fixed to the thermal insulation member is prepared. How to add. Prior to the second step, a third step of measuring the temperature distribution of the inner wall surface,
The method for adding a heat shielding structure according to any one of claims 5 to 9, further comprising: After the second step, a fourth step of measuring the temperature distribution of the surface of the heat shield member opposite to the inner wall surface,
The method for adding a heat shielding structure according to any one of claims 5 to 10, further comprising:

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